A systematic study on microstructure evolution, mechanical stability and the micro-mechanical response of tensile deformed medium manganese steel through interrupted tensile test

Mohapatra, Sudipta; Poojari, Govardhana; Marandi, Lakhindra; Das, Siddhartha; Das, Karabi

doi:10.1016/j.matchar.2022.112562

Cited by 19 publications

(5 citation statements)

References 53 publications

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“…These techniques are discussed in the following sections. [31][32][33][34] However, during in situ quantitative measurements, only one specimen is usually required. For averaging the estimation, investigators may employ several specimens.…”

Section: Techniques For the Quantification Of Austenitementioning

confidence: 99%

“…Several techniques have been employed to measure the kinetics of the deformation‐induced transformation in TRIP and TRIP‐assisted steels. [ 26–67 ] Various quantitative assessment methods for austenite fraction in the TRIP steels are shown in Figure 1 . The quantitative assessment techniques can be broadly classified into four types: 1) diffraction measurements, 2) Mossbauer spectroscopy, 3) magnetic measurements, and 4) microscopic techniques.…”

Section: Techniques For the Quantification Of Austenitementioning

confidence: 99%

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A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Tiwari,

Varshney

2023

steel research int.

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Deformation‐induced austenite to martensite transformation is an important phenomenon that controls the flow behaviour of Transformation Induced Plasticity (TRIP) and TRIP‐assisted steels. Transformation kinetics and triggering strain are important parameters that need to be known during the transformation. Both these parameters can be correctly determined by an accurate quantitative assessment of the austenite during deformation. Various techniques have been employed for the quantitative assessment of the austenite by previous investigators. In this paper, both the in‐situ and ex‐situ measurement techniques used for quantitative assessment of austenite during/after tensile deformation of the TRIP and TRIP‐assisted steels are reviewed. A comparison of various techniques such as X‐ray diffraction, neutron diffraction, Mossbauer spectroscopy, and DC/AC magnetic permeability is presented. Due to the limited penetration power of the radiations, difficult access, and difficulty in setting up the measurement facility for the in‐situ measurements, X‐ray diffraction, neutron diffraction, and Mossbauer spectroscopy techniques do not yield accurate quantitative results and are time consuming. It is envisaged that an accurate quantitative assessment of austenite from the bulk of the TRIP and TRIP‐assisted steel specimens is possible with magnetic permeability measurement techniques. Real‐time quantitative assessments can be made by measuring changes in the magnetic permeability due to changes in the ferromagnetic content during deformation. Extensive calibration is required for the accurate measurement of the phases with the magnetic permeability measurements during the deformation of the steel.This article is protected by copyright. All rights reserved.

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Section: Techniques For the Quantification Of Austenitementioning

confidence: 99%

Section: Techniques For the Quantification Of Austenitementioning

confidence: 99%

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Tiwari,

Varshney

2023

steel research int.

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“…At the same time, the evolution of the EPS at the center of the two-hole specimen surface is extracted from the DIC data, and compared with the EPS at the same position in the simulation in Figure 12b. Interrupted tensile tests were used to monitor the evolution of retained austenite content in case of cyclic plane strain loading [68]. XRD tests were implemented after the assigned EPS of 0.06, 0.12, 0.2 and 0.23, respectively.…”

Section: Cyclic Loading In Plane Strainmentioning

confidence: 99%

“…Interrupted tensile tests were used to monitor the evolution of retained austenite content in case of cyclic plane strain loading [68]. XRD tests were implemented after the assigned EPS of 0.06, 0.12, 0.2 and 0.23, respectively.…”

Section: Cyclic Loading In Plane Strainmentioning

confidence: 99%

Strain-Induced Phase Transformation Modeling of QP980 Steel and Its Application to Complex Loading Paths

Dai

Guo

et al. 2023

Metals

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Quenching and partitioning (QP) steel has attracted much focus due to the effect of phase transformation induced plasticity (TRIP). However, the TRIP behavior makes it difficult to accurately predict the strain and stress distribution as well as the phase transformation behavior of QP steel. The scanning electron microscope (SEM) images of QP980 microstructure were obtained by scanned electron microscope in this study, which was characterized by the combination of lath martensite, polygonal ferrite and retained austenite. Volume fraction evolution of retained austenite with equivalent plastic strain (EPS) of uniaxial tension was obtained by electron back scatter diffraction. The phase transformation kinetics equations of QP980 were deduced based on the phase transformation model proposed by Olson and Cohen (simplified as O-C theory), considering the effects of strain rate, deformation temperature and stress state. A constitutive model on the dependence of the phase transformation was proposed to reveal the relation between metallographic characteristics and mechanical performance of QP980 steel during deformation. Users’ subroutine VUMAT in ABAQUS/Explicit was implemented to describe the volume fraction of retained austenite (VFRA) under different stress states. The established phase transformation and constitutive model were applied to three kinds of complex path loading tests. The variation of retained austenite under complex strain paths was obtained and compared with the experimental results.

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“…The high strength and hardness of the martensitic phase can be attributed to the solid solution strengthening by carbon atoms and the complex martensitic microstructure formed through rapid, diffusionless phase transformation. Consequently, many scholars have conducted in-depth experimental and theoretical research on the microstructure of martensite and the mechanical properties of martensitic steels [1][2][3][4]. In order to gain a profound understanding of the relationship between microstructure and properties in steel, it is imperative to delve into the processes of martensitic phase transformation under various complex conditions and the evolution of martensitic microstructures.…”

Section: Introductionmentioning

confidence: 99%

A Phase Field Study of the Influence of External Loading on the Dynamics of Martensitic Phase Transformation

Liu,

Man,

Yang

et al. 2023

Materials

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An elastoplastic phase field model was employed for simulations to investigate the influence of external loading on the martensitic phase transformation kinetics in steel. The phase field model incorporates external loading and plastic deformation. During the simulation process, the authenticity of the phase field model is ensured by introducing the relevant physical parameters and comparing them with experimental data. During the calculations, loads of various magnitudes and loading conditions were considered. An analysis and discussion were conducted concerning the volume fraction and phase transition temperature during the phase transformation process. The simulation results prominently illustrate the preferential orientation of variants under different loading conditions. This model can be applied to the qualitative phase transition evolution of Fe-Ni alloys, and the crystallographic parameters adhere to the volume expansion effect. It is concluded that uniaxial loading promotes martensitic phase transformation, while triaxial compressive loading inhibits it. From a dynamic perspective, it is demonstrated that external uniaxial loading accelerates the kinetics of martensitic phase transformation, with uniaxial compression being more effective in accelerating the phase transformation process than uniaxial tension. When compared to experimental data, the simulation results provide evidence that under the influence of external loading, the martensitic phase transformation is significantly influenced by the applied load, with the impact of external loading being more significant than that of plastic effects.

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A systematic study on microstructure evolution, mechanical stability and the micro-mechanical response of tensile deformed medium manganese steel through interrupted tensile test

Cited by 19 publications

References 53 publications

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

A Review on Measurement Techniques of Deformation‐Induced Transformation Kinetics in Transformation‐Induced Plasticity and Transformation‐Induced Plasticity‐Assisted Steels

Strain-Induced Phase Transformation Modeling of QP980 Steel and Its Application to Complex Loading Paths

A Phase Field Study of the Influence of External Loading on the Dynamics of Martensitic Phase Transformation

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